Liquid-fuel burner



N. W. KELDER. LIQUID FUEL BURNER. APPLICATION FILED 05012, 1919.

Patented Dec; 14, 1920.

UNITED STATES NIAL W. KELDER, O1 BBIDGEPOBT, CONNECTICUT.

mourn-rum. nnma Specification of Letters Patent.

Patented Dec. 14, 1920.

Application filed December 12, 1919. S,eria1 in. 344,440.

To all whom it may concern.

Be it known that I, NIAL W. Knnmm, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Liquid- Fuel Burners, of which the following is a specification.

My invention relates to new and useful improvements in liquid fuel burners, and the primar object of the invention is to provide a evice wherein air is evenly admitted and combined with thefuel flame to cause the flame to burn evenly and deliver the greatest amount of heat and to combine the elements of combustion whereby anodorless and smokeless flame is established.

Another important object of the invention is to provide a device of the above nature, the construction of which is generall improved and manufacturable at -a minimum cost, which is strong, durable, easily installed in stoves and ranges, and is highly efiicient in practice.

A further object of the invention is to provide a'device including a flame chamber consisting of a pair of spaced perforated walls, the perforations therein being so arranged that the air admitted therethrough is directed upwardly of the flame chamber upon being admitted thereinto.

A still further object of the inventionis to provide adevice of the above nature including a burner which is constructed from a single piece of material in such a manner as to form supports for partsassociated with the burner.

Other objects and advantages of the invention will become apparent during the course of the following description.

In the accompanying drawings forming a part of the description and wherein like numerals are employed to designate like parts throughout. the several views,

Figure 1 is a side elevation of the invention applied to a stove or range, 1

Fig. 2 is a fragmentary vertical section of my improved burner,

Fig. 3 is a bottom plan of the same,

Fig. 4 is an enlarged fragmentary vertical section of a portion of the flame chamber walls.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of the invention, the numeral 5 designates a stove, range or any other heating device, in which my improved burner may be installed for cooking or heating purposes. A fuel reservoir 6 is provided tosupply my improved burners designated .in its entirety by the numeral 7, with fuel andto maintain the fuel at a constant level within the burner.

The fuel from the reservoir is passed to the burner through a supply conduit 8, including a vertical branch 9, the upper end of which terminatesin upwardly inclined radiatlng feed pipes 10, the upper ends'of which communicate and deliver fuel to the fuel chamber of the burner. 5

The burner, is designated in its entirety by the numeral 11 and consists of a single piece'of material bent vertically upon itself intermediate its ends to provide a dividing partition 12, and the free ends 13 of'the material are extended upwardly upon either side of. the partition in spaced relation thereto in order to provide an outer cylinder receiving socket 14 and an inner wick and fuel chamber or socket 15. The burner 11 is an annular device, and the fuel chamber 15 thereof receives in its upper end, an annular wick 16 which may consist of any desired material, but' is preferably formed of as bestos in the present instance. 6 As more clearly shown in Fig. 2 the upper ends of the feed pipes 10 extend through the bottom of'the fuel chamber 15 to deliver fuel to the bottom of the chamber and thence to the wick; j

A perforated circular air admitting plate 17is provided with an upstanding annular flange 18 by which the plate is secured to the inner wall of the wick and fuel chamber 15,

.through' the medium of fastening elements 19. v

An outer perforated cylinder 20 has its lower end snugly received in the cylinder receiving socket 14, of the burner to be properly supported, and to form the outer wall of a flame chamber 21. The inner wall of this chamber is provided by a perforated cylindrical drum 22, the top 23 of which is -provided with a single central aperture 21,

while the bottom of the drum is open and snugly engaged by the upstanding annular flange of the perforated air admitting plate 17. Consequently, the drum is arranged concentrically of the cylinder 20 in spaced relation thereto so as to provide the flame chamber 21. a

' The air admitting apertures 25 in both the drum and the cylinder as more clearly shown said elements in Figs. 2 and4,"are

with alined horizontal slits.

The upper edge'26ot'each slitzin the cylin der is concavedoutwardly while the lower edges 27; I are 'conc'av'ed lnwardly ed apertures or openings in w rd y. n the "drum, "and consequently due to the ar- 'rangement; v of these I openings and the partial. vacuum createdin the flame chamber, airi will be f lra-wn through the I apertures in an, 1.1 ward. direction jup'on' opposite sides of the ame toproperly combine with and in tensity 'thelsame. I

In, use, fuelv being "constantly. maintained in the fuel chamberglflot the-burner, the

wiclrfis ignited and I due to the partial vacuum create'd'in the flame chamber 21', air 7 'is sucked up 't-hroughthe perforated. plate.

l7 and'through the apertures in the drum 22 and'throu'gh the apertures in the outer. y in r .tacted with the onsequently, air' will be conflame uponboth sides there- 'ofand due to the incline relation of the aperture' s 25, the'heat w'ill be assisted in reach- It: will be appreciated ing 'itsxdestination while the air is properly combining-with the flame. I e that the burner readily disassembled as y be ea ly n thegouter 'cyl nder'may be moved out of itsl socket 14 'afs'ca'n the drum 22 be disengaged. fromj thje flange 18 of the air admit- ,ting' plate 17L After the cylinder 20 has been remove'd,'it \vill be manifest that the wick may be trlmmedor replaced and the removed parts of the burner may be quickly assembled.

pan 'ing drawings have reference to what mig t be considered to be the approved or preferred form of my invention. Iedesir'e The foregoing description and accomprovided by equipping to equip the '0 lmder with upwardly inclined apertures.

heupper edge'df each slit in the drum l22 is concaved inwardly, while the lower edges 29 are conca ved' outwardlyi to form up- Letters Patent, is

, flame chamber, being equipped itto be understoodthat I may make such changes in the construction, combination and arrangement of parts, materials, dimensions, et cetera, as may prove expedient and fall within the scope. of the appended c1aima,,.,.g

Having thus fully described my'invention what I claim as new and desire to secure by 1 ..A burner comprlsing -a drum' into which air may pass, a cylinder surrounding said, drum in spaced relation' to provide a flame chamber, and the walls of said drum and cylinder being provided with upwardly inclined openin s. directed inwardly toward the flame cham er.

2; A liquid,

the class described coma perforated cylinder, a mounted concentrically and in spaced relation to said cylinder, 21

wick, said burner consisting of a single piece of' material having its intermediate portion bent vertically upon itself to form a divid ing partition, the ends of said material being bent upwardly in spaced relation to said dividing partition to form a pair of sockets, the innermost end of the cylinder.

for the reception of said wick, and the other for the reception of the lower In testimon whereof I affix my signature in presence 0 two witnesses.

NIAL W. KELDER. Witnesses:

J OHN R. HOSHKING, RICHARD F. C DDIHY. 

